Trayvon Martin's mother testifies

The mother of Trayvon Martin has testified that screams for help captured on audio of a 911 call came from her 17-year-old son.

http://www.wtsp.com/video/2527781321001/1496577165001/Trayvon-Martins-mother-testifieshttp://bcdownload.gannett.edgesuite.net/wtsp/35087134001/35087134001_2527827184001_thumbnail-for-video-2527781321001.jpg?pubId=35087134001Trayvon Martin's mother testifiesThe mother of Trayvon Martin has testified that screams for help captured on audio of a 911 call came from her 17-year-old son.Grayson Kammtrayvon martingeorge zimmermanCourtswtsplocalNews02:36